I am not a lawyer!
Residents aliens should be OK as long as not prohibited. Federal Laws say resident of a state for 90 days to purchase a gun. Non-resident is no possession unless issued a legal permit from a state or hunting license and no purchase whatsoever.
I'm not sure about DE law but, if there isn't a law strictly forbidding an act it's deemed legal. I'd tread lightly, especially in Wilmington, until I got legal advice or an explanation from the DOJ/AG.
Looks like illegal immigrants are a no across the board.
http://www.onenewsnow.com/Headlines/Def ... id=1593976
DENVER - A federal appeals court says illegal immigrants don't have a right to own firearms under the U.S. Constitution.
Emmanuel Huitron-Guizar of Wyoming pleaded guilty to being an illegal immigrant in possession of firearms after his arrest last year. He was ordered held by immigration authorities at the Natrona County Detention Center in Wyoming.
An attorney for Huitron-Guizar appealed the case, saying illegal immigrants are not excluded from possessing firearms like felons and people who are mentally ill, and should have the same rights as U.S. citizens to buy a gun for hunting and protection.
The 10th Circuit U.S. Court of Appeals in Denver ruled Monday that illegal immigrants have only limited protection under the Constitution.
Huitron-Guizar's attorney didn't return a call seeking comment.